2 * $Id: byte_manager.c 44 2011-02-15 12:32:29Z kaori $
4 * Copyright (c) 2002-2011, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
5 * Copyright (c) 2002-2011, Professor Benoit Macq
6 * Copyright (c) 2010-2011, Kaori Hagihara
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
32 #include <sys/types.h>
36 #include "byte_manager.h"
39 #include "fcgi_stdio.h"
40 #define logstream FCGI_stdout
42 #define FCGI_stdout stdout
43 #define FCGI_stderr stderr
44 #define logstream stderr
48 Byte_t * fetch_bytes( int fd, long offset, int size)
52 if( lseek( fd, offset, SEEK_SET)==-1){
53 fprintf( FCGI_stdout, "Reason: Target broken (fseek error)\r\n");
54 fprintf( FCGI_stderr, "Error: error in fetch_bytes( %d, %ld, %d)\n", fd, offset, size);
58 data = (Byte_t *)malloc( size);
60 if( read( fd, data, size) != size){
62 fprintf( FCGI_stdout, "Reason: Target broken (read error)\r\n");
63 fprintf( FCGI_stderr, "Error: error in fetch_bytes( %d, %ld, %d)\n", fd, offset, size);
69 Byte_t fetch_1byte( int fd, long offset)
73 if( lseek( fd, offset, SEEK_SET)==-1){
74 fprintf( FCGI_stdout, "Reason: Target broken (seek error)\r\n");
75 fprintf( FCGI_stderr, "Error: error in fetch_1byte( %d, %ld)\n", fd, offset);
79 if( read( fd, &code, 1) != 1){
80 fprintf( FCGI_stdout, "Reason: Target broken (read error)\r\n");
81 fprintf( FCGI_stderr, "Error: error in fetch_bytes( %d, %ld)\n", fd, offset);
87 Byte2_t fetch_2bytebigendian( int fd, long offset)
92 if(!(data = fetch_bytes( fd, offset, 2))){
93 fprintf( FCGI_stderr, "Error: error in fetch_2bytebigendian( %d, %ld)\n", fd, offset);
102 Byte4_t fetch_4bytebigendian( int fd, long offset)
107 if(!(data = fetch_bytes( fd, offset, 4))){
108 fprintf( FCGI_stderr, "Error: error in fetch_4bytebigendian( %d, %ld)\n", fd, offset);
117 Byte8_t fetch_8bytebigendian( int fd, long offset)
122 if(!(data = fetch_bytes( fd, offset, 8))){
123 fprintf( FCGI_stderr, "Error: error in fetch_8bytebigendian( %d, %ld)\n", fd, offset);
133 Byte2_t big2( Byte_t *buf)
135 return (((Byte2_t) buf[0]) << 8) + ((Byte2_t) buf[1]);
138 Byte4_t big4( Byte_t *buf)
140 return (((((((Byte4_t) buf[0]) << 8) + ((Byte4_t) buf[1])) << 8)
141 + ((Byte4_t) buf[2])) << 8) + ((Byte4_t) buf[3]);
144 Byte8_t big8( Byte_t *buf)
146 return (((Byte8_t) big4 (buf)) << 32)
147 + ((Byte8_t) big4 (buf + 4));
150 void modify_4Bytecode( Byte4_t code, Byte_t *stream)
152 *stream = (Byte_t) ((Byte4_t)(code & 0xff000000) >> 24);
153 *(stream+1) = (Byte_t) ((Byte4_t)(code & 0x00ff0000) >> 16);
154 *(stream+2) = (Byte_t) ((Byte4_t)(code & 0x0000ff00) >> 8);
155 *(stream+3) = (Byte_t) (code & 0x000000ff);
158 Byte8_t get_filesize( int fd)
162 if( fstat( fd, &sb) == -1){
163 fprintf( FCGI_stdout, "Reason: Target broken (fstat error)\r\n");
164 fprintf( FCGI_stderr, "Error: error in get_filesize( %d)\n", fd);
167 return (Byte8_t)sb.st_size;